1. 7.RP.2
Recognize and represent proportional relationships between quantities.
7.RP.2a
Decide whether two quantities are in a proportional relationship.
I can identify proportional and non-proportional relationship at least at 80% proficiency.

3. Vocabulary
Proportional: two quantities that have a constant ratio or unit rate.
Non-proportional: quantities that do not have a constant ratio or unit rate
Equivalent ratios: ratios that have the same value.

5. 𝑆𝑡𝑢𝑑𝑒𝑛𝑡𝑠 𝑡𝑒𝑎𝑐ℎ𝑒𝑟𝑠 = 48 2 = 96 4 = 144 6 = 192 8 = 240 10
24 1 = = = =
Sense each ratio simplifies to a unit rate of 24 students
for every teacher the ratio of students to teachers is proportional.

7. Page 37 #1

9. $140
$160
$180
$ 𝑤𝑘 = $140 1 =$140 $160 2 =$80 $180 3 =$60
Non-Proportional, because the Unit Rates are not the same quantity (equal).

10. Page 37 #2

12. Page 37 #3

13. Classwork
Homework
Pages: 37
# 4-15

14. Proportional and Non-Proportional Relationships
Quick Check